How to install nodejs? Brief analysis of methods

Node.js is a JavaScript running environment based on the Chrome V8 engine, which can implement JavaScript server-side applications. Node.js is widely used in web development, command line tool development and other fields. When using Node.js, we need to install the Node.js executable file first. This article will introduce its installation method.

1. Download the installation file

Download the installation file for the corresponding operating system from the official website https://nodejs.org/en/. Let's take the Windows operating system as an example and download the Windows installation file of Node.js.

2. Install Node.js

1. Double-click the downloaded Node.js installation file, and the installation interface will pop up.

2. Click the "Next" button to enter the installation agreement reading interface, check the "I accept the terms in the License Agreement" option box, and then click the "Next" button.

3. Select "Typical" on the installation type interface, and then click the "Next" button.

4. Select the default installation path, it is not recommended to change it. Click the "Next" button.

5. Check the "Automatically install the necessary tools" option box, and then click the "Next" button.

6. Click the "Install" button to start installing Node.js.

7. After the installation is completed, click the "Finish" button to exit the installation.

3. Verify whether the Node.js installation is successful

1. Open the command prompt and enter the following command:

node -v

If the Node.js version number is output , indicating that the installation is successful.

2. Enter the following command:

npm -v

If the npm version number is output, the installation is successful. It also verified whether the npm installation was successful. npm is the package management tool for Node.js. We can use it to install and manage Node.js related packages.

At this point, the Node.js installation is complete.

4. Environment variable configuration

In order to facilitate the use of Node.js and npm, we can add the installation file path of Node.js to the environment variable. The specific operations are as follows:

1. Right-click "This Computer" on the desktop and select "Properties".

2. Click "Advanced System Settings".

3. In the "System Properties" interface, select "Environment Variables".

4. In the "Environment Variables" interface, find the "Path" variable in "System Variables" and click "Edit".

5. In the pop-up "Edit Environment Variables" interface, click "New", enter the installation file path of Node.js, and click "OK". Generally speaking, the path is: C:\Program Files\nodejs.

6. After the configuration is completed, open the command prompt and enter the Node.js and npm verification commands again, and you will find that the verification has been successful. At the same time, you can also use them by entering the "node" and "npm" commands in the command prompt.

Summary: The installation of Node.js is very simple, just download the installation file and complete the default settings. At the same time, we can also install corresponding compilers and other tools for easy use. Node.js is a powerful tool that is highly recommended. It not only brings convenience to program development, but also greatly improves the operating efficiency of programs and improves the business level of enterprises.

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